Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

The dirtier I get, the whiter I look. Who am I?

Use the digits from 1 up to 9 and make 100.

Follow the rules.
=> Each digit should be used only once.
=> You can only use addition.
=> For making a number, two single digits can be combined (for example, 4 and 2 can be combined to form 42 or 24)
=> A fraction can also be made by combining the two single digits (for example, 4 and 2 can be combined to form 4/2 or 2/4)

Question: how can we do this?

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

Which English verb becomes past tense just by rearranging the letters?

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

There are nine dots in the picture that has been attached with this question. Can you join all the dots by drawing four straight lines without picking up your pen?

This is a simple one. You just have to count the number of Fs in the given sentence.

Finished Files are the result of years of scientific study combined with the experience of years.

How many did you count?